HMS AnyBus-X J1939, Руководство пользователя

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Installation 2-3
© 2002 HMS Industrial Networks
Document Id:
SCM-7801-026
Configuration Port Connector
The configuration port is the 25-pin D-Subminiature female connector on the end
of the AnyBus-X. The connector has a standard RS-232 DTE pin configuration.
The connections to be made are shown in Figure 2-2.
The AnyBus-X is connected to a PC for configuration using a null-modem cable.
A null-modem cable has pins 2 and 3 swapped so that the PC’s Transmit line is
connected to the AnyBus-X’s Receive line, and the PC’s Receive line is con-
nected to the AnyBus-X’s Transmit line.
Note: The AnyBus-X does not make use of the modem control signals specified
for a DTE connector. Connecting the module through devices, such as isolation
modules, which assume control of these lines may cause the BWConfig commu-
nications to be unreliable.
Figure 2-2 Configuration Port Connector
(2) Transmit Data
(3) Receive Data Signal Ground (7)